Machine for brushing fabrics



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MACHINE FOR BRUSHINGTABRIGS. 4

No. 463,896. Patented Nov. 24, 1891.

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ATENT SAM UEL G. HALL, OF OOIIOES, i ElV YORK.

MACHINE FOR BRUSHING FABRICS.

SPECIFICATION forming part of Letters Patent N 0. 463,896, datedNovember 24, 1891.

Application filed September 5, 1891. Serial No. 404,883. (Ndmodeh) Toall whom, it may concern.-

Be it known that I, SAMUEL G. HALL, of Cohoes, county of Albany, andState of New York, have invented certain new and useful Improvements inMachines for Brushing Fabrics, of which the followingis a specification.

My invention, whi-le applicable to fabricbrushing machines generally,has been designed more particularly with reference to the needs ofmachines for brushing knit garments.

In machines of this character the fabric is usually operated on byrevolving brushes, which produce a nap upon the surface of the fabric.In thus brushing knit garments the garment at times will be caught byand engaged with the teeth (usually metallic) with which the brush isarmed, and consequently will be carried around with the brush, theresult being the practical ruin of the garment. Endeavor has been madeto obviate this difficulty by various meansas, for example, by means ofa rotary roll armed with longitudinal blades of flexible material, suchas leather. These blades sweep over the brush-teeth in an oppositedirection to the revolution of the brush, and are intended to preventthe garment from clinging to and being carried around with the brush. Sofar as I am aware, however, these endeavors have been at the most onlypartially successful. Even in the case of the flexible stripper-bladesthese blades can only contact with the mere exterior surface of thebrush, and the garments at times will slip by them, over and beyondwhich there is injurious wear between the points of the metallicbristles or teeth of the brush and the flexible blades.

Under my improvements I employ as a stripper a series of thin metallicprojections mounted at intervals apart upon a shaft and so placed thatat their outer edges they penetrate beyond the outer surface of thebrush between the bristles or teeth, the points of which form thesurface thereof. These projections, which preferably are thin steeldisks, effectually strip the garment from the brush beyond possibilityof failure. The garment cannot pass beyond them. At the same time,presenting, as they do, very thin edges to the brush and having thesethin edges projecting into the card-face of the brush and between thebristles or teeth thereof, there is no wear either of the teeth or ofthe stripping-disks. The shaft on which the disks are fixed preferablyrevolves, the direction of the revolution being opposite that of thebrush, and in connection with the disks I employ a stationaryclearer-plate or comb, which enters the spaces-between the disks and isslit to receive the disks themselves. This plate, if desired, may form aguide to direct the garment to a second brush for brushing the oppositeface of the garment from that operated on by the first brush. Thissecond brush also should be provided and combined with a series ofstripping-disks and also, if preferred, with a clearer-plate or comb.

I desire to remark here that I do not claim as my invention thecombination of feed-rolls and two brushes to the action of which thefabric is successively subjected, the arrangement being such that thegarment or fabric in passing through the machine is brushed first on onesurface by one brush and is then passed between the feed-rolls of thesecond brush and has its opposite surface brushed by said second brush.I am aware that this has before been done in several instances.

My invention resides, essentially, in the combination of the brush withthe series of stripping-disks, having their outer edges arranged toenter the face of the clothing of the brush and between the teeththereof, and in the further combination with these two instrumentalitiesof the clearer-plate or comb, which, if desired, may serve as theguideway or plate to the feed-rolls of the second brush.

The nature of myinvention will be readily understood by reference to theaccompanying drawings, in which- Figure 1 is alongitudinal verticalsectional elevation of so much of a brushing-machine as needed toillustrate my improvements. Fig.

2 is a front elevation of a portion of the first brush, its feed-rolls,stripper-roll, and clearerplate or comb. Fig. 3 is a perspective view ofa portion of the stripper-roll. Fig. t is a like view of a portion ofthe clearer-plate or comb.

The parts of the machine are supported in a frame A of any usual orsuitable construction.

B is the table,over which the fabric or gap ment passes to and betweenthe power-drivenfeed-rolls C, which present it to the revoltingcylindrical brush D, clothed, as customary, with fine close-set wireteeth or bristles, which brushes one side or face of the garment in theusual way, after which the garment may be conducted to another pair offeed'rolls C, by which it is delivered to a second revolving brush B,which operates to brush the opposite face of the garment. After this thegarment drops upon an endless traveling apron E, which carries it outfrom the machine. The direction in which the moving parts abovereferredto move is indicated by the arrows. Thus far there is nothing new in themachine.

Below the point at which the brush B opcrates on the fabric or garmentis located my improved stripper. This stripperconsists ofa series ofthin blade-like annular disks F, preferably of steel, which are mountedon; and secn red to a shaft G, which has its bearings in the frame.Thisshaft need not rotate. Thestripping-disks would still act to stripthe garment from the brush but to secure the best resultsI find that theshaft with its disks should be power-driven and rotate in a directionoppoposite to that in which the brush moves, as indicated by the arrowon the stripper. The brush-cylinder is usually from five to six feetlong. The series of disks F extend throughout the length of thebrush-cylinder and are set on the shaft G about an inch apart, being forthis purpose separated by wooden washers a, mounted on the shaft, onebetween each two contiguous disks.

The parts are so proportioned and arranged that the outer edges of thedisks penetrate the face of the brush-clothing and between the teeth orbristles thereof, as plainly seen in Fig. 1. In practice they extendabout half the depth of the wire bristles. Under this arrangement it ismanifest that any fabric or garment adhering to the surface of the brushmust of necessity be stripped and removed therefrom when it reaches thedisks.

The periphery of the stripping-disks may be a plain circle, or it may betoothed or otherwise shaped. I have found that the best results areobtained by giving a wave-like corrugated form to the peripery, and thisform I have represented in the drawings.

To prevent the fabric or garment from possible clinging to and travelingwith the strip per, I make use of a clearer-plate or comb II. Thisplate, which is stationary and fixed to the frame A by any suitablesupport, extends the length of the stripper. Its inner end rests on ornearly on the wooden washers CL of the stripper, and it is slitted orslotted at?) to receive the disks. \Vhen a second brush B is used, thiscomb-plate can be arranged to form a guideway or table over which thegoods will travel and be directed to the feed-rolls (J of the secondbrush, and this arrangement is represented in the drawings. The secondbrush is provided also with its stripper and comb-plate therefor,although the latter may be omitted in this instance; but as these partsare the same as those already described in connection with the firstbrush they require no further explanation. The stripping-disks of thesecond brush are lettered F, their shaft G, and their comb-plate II.

I is a stationary guide-plate between the first and second set offeed-rolls.

The operation of the machine, whether one or two brushes be employed,will readily be understood from what has alreadybeen said, and requiresno further description.

The garment or fabric passing through the machine is marked X.

\Vhat I claim herein as new and of my own invention is as follows:

1. In a brushing-machine, the combination, with the brush and feed-rollsfor feeding the fabric or garment to the brush, of a stripper armed withthin metallic projections which extend into orpenetrate the face of thebrushclothing between the teeth or bristles which form said clothing,substantially as and for the purposes hereinbefore set forth.

2. In a brushing-machine, the combination, with the brush and feed-rollfor delivering the goods to the brush, of a rotating strippershaft armedwith thin metallic disks or projections set at intervals apart on saidshaft and arranged so that their edges will extend into thebrush-clothing between the teeth or bristles thereof, substantially asand for the purposes hereinbefore set forth.

3. The combination, with the brush and feed-rolls fordelivering thegoods to the brush, of a rotating stripper arm ed with thin metallicprojections which extend into the brush-clothing between the teeththereof, and a combplate for clearing the goods from the stripper,substantially as and for the purposes hereinbefore specified.

4. The combination, with .the first brush and its feed-rolls forbrushing one face of the goods and the second brush and its feed-rollfor brushing the opposite face of the goods, of an intermediate rotatingstripper for the first brush, armed with thin projections which extendinto the face of the brush-clothing between the teeth or bristlesthereof, and a comb-plate which clears the goods from the stripper andalso forms a guideway for directing the goods to the feed-rolls of thesecond brush, substantially as and for the purposes hereinbeforc setforth.

In testimony whereof I have hereunto signed my name this 10th day ofAugust, 189.1.

SAMUEL G. IIALL.

Witnesses:

EWELL A. DICK, M. BAILEY,

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